JP2001318295A - Engaging mechanism for optical device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engaging mechanism for an optical device capable of easily confirming visually as to whether an engaging recessed part and an engaging projecting part are normally engaged or whether they are disengaged. SOLUTION: In a state, where the engaging arm part 307A2 of a 1st lens frame 307A is inserted in a guiding groove 303A2 provided on the bottom wall 303a of a right-moving body 303, the lower surface 307A22 of the lens frame 307A is exposed to the outside of the bottom wall 303A of the moving body 303. In a state where the engaging projecting part 397A22 of the lens frame 307A is engaged with the engaging recessed pat 213D of a 1st lens-interlocking plate 213, the position of the hole part 307A23 of the lens frame 307A is aligned with the position of the outer edge part of the arm part 213B of the plate 213, and when the projecting part 307A22 is disengaged from the recessed part 213D, the position of the hole part 307A23 of the lens frame 307A does not coincide with the position of the outer edge part of the arm part 213B of the plate 213.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical device engaging mechanism for engaging two members.

[0002]

2. Description of the Related Art There are binoculars having a zoom function capable of continuously changing a magnification. In this type of binoculars, an objective lens or an eyepiece constituting a telescope optical system is housed in each of the left and right mirrors, and at least one of the objective lens and the eyepiece is formed of a plurality of lenses. When the one with the objective lens is the front and the one with the eyepiece is the rear, of the plurality of lenses, the front group lens disposed closer to the front and the rear group disposed closer to the rear are disposed. The magnification is adjusted by changing the distance between the lenses. The adjustment of the distance between the lenses is performed by moving the lenses of the front group and the rear group in the direction of separating and approaching in the optical axis direction of these lenses. The front lens group and the rear lens group are held by lens holding members for the front lens group and the rear lens group movably provided in the optical axis direction. These two lens holding members are connected by a telescope optical system. It is coupled to two moving members that move in opposite directions along the optical axis direction in conjunction with the movement of a zoom adjustment member that is operated to adjust the magnification of an image to be formed. For example, the lens holding member is provided with an engaging concave portion, and the moving member is provided with an engaging convex portion. The engaging concave portion and the engaging convex portion are engaged with each other, so that the lens holding member and the moving member move along the optical axis direction. Movably coupled.

[0003]

In the case where the lens holding member and the moving member are connected by the engagement between the engaging concave portion and the engaging convex portion, the engaging concave portion and the engaging convex portion are visually recognized from the outside. In many cases, it is difficult to determine whether the engagement is normal or the engagement is released. Therefore, there is a possibility that the assembling process proceeds with the engagement of the engaging concave portion and the engaging convex portion being disengaged, and inconvenience such that a defect is found in a later process. Such inconvenience is not limited to binoculars, but is a problem common to an engagement mechanism in which two members are engaged by an engagement concave portion and an engagement convex portion. The present invention has been devised in view of the above circumstances, and an object of the present invention is to make sure that when two members are engaged by an engaging concave portion and an engaging convex portion, the engagement is normally performed. It is an object of the present invention to provide an optical device engagement mechanism that allows the user to easily visually recognize whether the engagement has been released.

[0004]

The present invention comprises a first member,
A first member provided with a second member and a support member, wherein the first member is movably supported by the support member in a predetermined direction.
A body portion; a first surface portion exposed to the outside of the support member in a state movably supported by the support member;
An engagement projection protruding from a surface portion, wherein the second member has a second main body portion disposed at a position distant from the support member, and the second main body portion is provided on the first surface portion. A second surface portion provided at a portion facing the first surface portion; and an engagement concave portion provided in a concave shape on the second surface portion and capable of engaging with the engagement convex portion. An optical device in which the first member and the second member are integrally movably coupled in the predetermined direction by the engagement protrusion and the engagement recess engaging with the second surface of the two members facing each other. In the engagement mechanism of (1), an index portion is provided on the first surface portion of the first main body portion, and the position of the index portion is set at an outer edge of the second main body portion in a state where the engagement convex portion and the engagement concave portion are engaged. The position of the index portion is inconsistent with the position of the outer edge of the main body in a state where the position of the index portion coincides with the position of the engaging projection and the engaging recess is disengaged. Characterized in that it is configured to be. For this reason, the position of the indicator is the second position.
Depending on whether it matches the position of the outer edge of the main body,
Whether the engaging projection and the engaging recess are engaged or disengaged can be easily identified. If the engagement is disengaged, the first member or the second member is moved. As a result, the engagement convex portion and the engagement concave portion can be normally engaged.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view showing a state in which a right lens unit and a left lens unit are closed and a right eyepiece and a left eyepiece are housed in an embodiment in which the engagement mechanism of the optical device of the present invention is applied to binoculars; FIG. 1A is a plan view and FIG.
FIG. 1B is a front view showing FIG. 1A viewed from the direction of arrow A1, and FIG. 1C is a side view showing FIG. 1A viewed from the direction of arrow A2. FIG. 2 is an external view of the binoculars showing the same state as FIG. 1, and FIG.
FIG. 2B is a front view showing the state of FIG. 2A viewed from the direction of arrow A3. FIG. 3 is an external view showing a state in which the right lens unit and the left lens unit are opened and the right eyepiece and the left eyepiece are projected in the embodiment of the binoculars to which the engagement mechanism of the present invention is applied. 3 (A) is a plan view, FIG. 3 (B) is a front view showing FIG. 3 (A) as viewed from the direction of arrow B1, and FIG. 3 (C) is FIG.
FIG. 3A is a side view as viewed from the direction of arrow B2, and FIG. 3D is a side view of FIG. 3A as viewed from the direction of arrow B3. FIG. 4 is an external view of binoculars showing the same state as FIG.
4 (A) is a bottom view, FIG. 4 (B) is a rear view showing FIG. 4 (A) viewed from the direction of arrow B4, and FIG. 4 (C) is FIG. 4 (A).
Is a side view showing a state viewed from arrow B5.

First, the overall structure of the binoculars will be described with reference to FIGS. In the following description, the left and right directions of the binoculars are defined such that the side of the binoculars where the objective lens is provided is the front, and the side where the eyepiece is provided is the rear. The binoculars 1000 include the support unit 100,
The optical system includes an optical adjustment unit 200, a right mirror 300, and a left mirror 400. The support unit 100 is provided between and supports the right mirror 300 and the left mirror 400 each having a telescope optical system. A diopter makeup ring 106 that is operated when performing diopter adjustment is attached to the support unit 100, and the optical adjustment unit 2 provided on the support unit 100 is mounted on the support unit 100.
Reference numeral 00 includes a focus adjustment ring 202 operated to adjust the focus of the left and right telescope optical systems, and a zoom adjustment ring 204 operated to adjust the magnification.

The right mirror 300 and the left mirror 400 are
The support portion 100 is movably supported in the width direction (left-right direction), that is, in the interpupillary direction. The support 10
The support of each mirror by 0 is performed such that the right mirror 300 and the left mirror 400 move in association with each other by the same distance from the support 100 with the support 100 as the center. When the focus adjustment ring 202 is rotated, the right moving body 303 holding the eyepiece and the erecting prism and the right eyepiece 304 among the telescope optical systems provided in the right mirror 300 and the left mirror 400 are similar to those of the telescope optical system. The left moving body 403 holding the eyepiece and the erecting prism and the left eyepiece 404 are moved in the optical axis direction to perform focus adjustment. Further, when the zoom adjustment ring 204 is rotated, a part of the telescope optical system provided in the right mirror 300 and the left mirror 400 moves in the optical axis direction to adjust the magnification. Is configured.
This magnification adjustment will be described later in detail.

The focus adjustment ring 202 and the zoom adjustment ring 2
04 denotes the binoculars 1 when the binoculars 1000 are viewed from a plane.
000 are provided adjacent to each other at a position closer to the eyepiece tube, that is, a position closer to the rear on the center line in the left-right direction of the telescope optical system. It is provided rotatable about the same axis parallel to the optical axis. Further, the focus adjustment ring 202 and the zoom adjustment ring 204 are provided at a position of the support unit 100 facing above the binoculars 1000. Since the axis and the optical axes of the left and right telescope optical systems are parallel, the “axial direction” and the “optical axis direction” mean the same direction. Hereinafter, the description will be made using the phrase “optical axis direction” unless it is necessary to distinguish between “axial direction” and “optical axis direction”. Further, the diopter makeup ring 106 is provided at a position near the objective lens of the support unit 100 facing the lower side of the binoculars 1000 on the center line in the left-right direction of the binoculars 1000 when viewed from a plane, that is, a position closer to the front. I have. Therefore, when the left and right mirrors are held by the left and right hands, the focus adjustment ring 202 and the zoom adjustment ring 204 are at the same distance from either of the left and right hands, and can be operated by either hand. The effect is also improved as compared with the prior art.

Next, the configuration of each part of the binoculars will be described. 5 is a partial cross-sectional view showing a state in which a part of the binoculars is broken, FIG. 6 is a cross-sectional view taken along the line XX of FIG. 5, and FIG. 7 is an exploded perspective view showing the entire configuration of the binoculars. 8 is an exploded perspective view showing a part of the support part, FIG. 9 is an exploded perspective view showing a part of the support part and the optical adjustment part, FIG. 10 is an exploded perspective view showing the configuration of the optical adjustment part, and FIG. FIG. 4 is an exploded perspective view illustrating a configuration of a part of an adjustment unit and an upper plate. FIG. 12 is an exploded perspective view mainly showing a configuration of a right exterior body of the right mirror body, FIG. 13 is an exploded perspective view mainly showing a configuration of a right moving body, a right objective section, and a prism section of the right mirror body, and FIG. Mainly the first lens portion, the second lens portion of the body,
FIG. 3 is an exploded perspective view illustrating a configuration of an eyepiece. 15 is an exploded perspective view mainly showing the configuration of a left exterior body of the left mirror body, FIG. 16 is an exploded perspective view mainly showing the configuration of a left moving body, a left objective section, and a prism section of the left mirror body, and FIG. 17 is a left mirror. FIG. 2 is an exploded perspective view mainly illustrating the configuration of a first lens unit, a second lens unit, and an eyepiece of a body.

FIG. 18 is a view showing the structure of the main body, and FIG.
8 (A) is a plan view of the main body, FIG. 18 (b) is a cross-sectional view showing a state where the main body is cut along a plane along the longitudinal direction, and FIG.
(C) is a bottom view of the main body. FIG. 19 is a cross-sectional view showing a state in which the main body is broken at a plane perpendicular to the longitudinal direction, and FIG. 19A is a cross-sectional view taken along line AA of FIG.
FIG. 9 (B) is a sectional view taken along the line BB of FIG. 18 (B).

FIG. 20 is a diagram showing the structure of the first lens interlocking plate. FIG. 20A is a front view of the first interlocking plate, and FIG.
20B is a plan view of the first interlocking plate showing the state of FIG. 20A viewed from arrow D1, and FIG. 20C is a first interlocking plate of FIG. 20A showing the state of arrow D2. Bottom view, FIG. 20
FIG. 20D is a side view showing the state of FIG. 20B viewed from arrow D3. FIG. 21 is a diagram showing the configuration of the second lens interlocking plate, FIG. 21 (A) is a front view of the second interlocking plate, and FIG. 21 (B) is a state in which FIG. 21 (A) is viewed from arrow E1. 21C is a plan view of the second interlocking plate, and FIG. 21C is a bottom view of the second interlocking plate showing the state of FIG. 21A viewed from the arrow E2.

First, the configuration of the support section and the optical adjustment section will be described with reference to FIGS. FIG. 52 is a plan view of an optical adjustment unit showing a state where the first and second lens interlocking plates, which will be described later, are farthest apart and the telescope optical system is adjusted to the low magnification side, and FIG. Reference is also made to FIG. 53 which is a plan view of an optical adjustment unit showing a state in which the plate is closest and the telescope optical system is adjusted to the high magnification side. The support part 100 includes a main body 101, a support plate 102, and a bottom cover 10
3, the upper plate 104, the interlocking gear 105, the right interlocking plate 109 (corresponding to the second member in the claims), the left interlocking plate 110 (corresponding to the second member in the claims), and the like. I have. Further, a diopter makeup ring 106 and a diopter difference eccentric seat 107 that constitute a part of an optical adjustment unit 200 described later are attached to the bottom cover 103.

The support plate 102 is formed in the shape of a rectangular plate, and is disposed such that its longitudinal edges are located before and after the binoculars, and its lateral edges perpendicular to the longitudinal direction are located on the left and right of the binoculars. I have. In the vicinity of the right edge of the upper surface of the support plate 102, two convex portions 102A1, 1
02A2, similarly, near the left edge of the upper surface of the support plate 102, two protrusions 102B1, spaced apart in the front-rear direction.
102B2 is protruded. Also, on the upper surface of the support plate 102, two convex portions 102B3 and 102A3 are protruded at intervals in the front-rear direction on the center line in the horizontal direction, and a circular shape is formed between the front convex portion 102B3 and the front edge. Through hole 102
C is provided, and a screw insertion hole 102D is provided to penetrate between the two convex portions 102B3 and 102A3. In the vicinity of the front edge of the support plate 102, a long hole 102H penetrating in the thickness direction is provided on the right and left sides of the center line in the left-right direction.
1, 102I1 are provided extending in the left-right direction, respectively. Similarly, near the rear edge of the support plate 102, long holes 102H2 and 102I2 penetrating in the thickness direction are provided on the right and left sides of the center line in the left and right direction, respectively, and extend in the left and right direction. Further, a notch 102J opened to the right at a right edge of the support plate 102 with an interval in the front-rear direction.
1, 102J2 are provided respectively, and cutouts 102K1 and 1
02K2 are provided.

The right interlocking plate 109 has a rectangular main body 109A.
And an extension 109B extending leftward from a position near the rear of the left edge of the main body 109A. Body 10
At the front and rear edges of 9A, the protrusions 102A1, 1
Guide groove 109 extending in the left-right direction into which 02A2 is inserted.
A1 and 109A2 are provided, and the extension 109B is provided with a guide groove 109B1 extending in the left-right direction into which the convex portion 102A3 is inserted. Also, screw insertion holes 109C1 and 109C1 are provided at the front and rear corners of the right edge of the main body 109A.
C2 is provided therethrough, and screw insertion holes 109D1 and 109D2 are provided therethrough at the front and rear corners of the left edge of the main body 109A. These screw insertion holes 109C1, 10C
The intervals of 9C2 are the long holes 102H1, 102H of the support plate 102.
It is configured to be the same as the interval of H2, and the screw insertion hole 1
The interval between 09D1 and 109D2 is notch 10 of support plate 102.
It is configured to be the same as the interval between 2J1 and 102J2.

The left interlocking plate 110 has a rectangular main body 110A.
And an extension 110B extending rightward from a location near the front of the right edge of the main body 110A. Body 11
On the front and rear edges of 0A, the protrusions 102B1, 1
Guide groove 110 extending in the left-right direction into which 02B2 is inserted.
A1 and 110A2 are provided, and the extension 110B is provided with a guide groove 110B1 extending in the left-right direction in which the convex portion 102B3 is inserted. Further, screw insertion holes 110C1 and 110C are provided at the front and rear corners of the left edge of the main body 110A.
C2 is provided therethrough, and screw insertion holes 110D1 and 110D2 are provided therethrough at front and rear corners of the right edge of the main body 110A. These screw insertion holes 110C1, 11
The intervals of 0C2 are the long holes 102I1, 102 of the support plate 102.
It is configured to be the same as the interval of I2, and the screw insertion hole 1
The interval between 10D1 and 110D2 is the notch 10 in the support plate 102.
It is configured to be the same as the interval between 2K1 and 102K2.

A rack 109B2 extending in the left-right direction is provided on the front edge of the extension 109B of the right interlocking plate 109, and a rack 109B2 extending in the left-right direction is provided on the rear edge of the extension 110B of the left interlocking plate 110. Existing racks 110B2 are formed. The right interlocking plate 109 has guide grooves 109A1, 1
09A2 and 109B1 are convex portions 102A1 to 102A3.
While the projections 102A1 to 102A3
Screw through a washer 801 in a screw hole provided in
2 is attached to the support plate 102 by being screwed, and is supported movably in the left-right direction.

The same applies to the left interlocking plate 110.
With the guide grooves 110A1, 110A2, and 110B1 inserted into the convex portions 102B1 to 102B3, the screws 802 are screwed into the screw holes provided in the convex portions 102B1 to 102B3 via the washers 801 to support the support plate. It is attached to 102 and is supported movably in the left-right direction. The support plate 1 is inserted into the screw insertion hole 102D of the support plate 102.
A shaft portion of a screw 803 inserted from the lower surface side of the support plate 02 is inserted through the center hole of the gear 105 on the upper surface side of the support plate 102 and screwed into a screw hole 103A of a bottom cover 103 described later. It has become. The gear 105 is a rack 109B of the right interlocking plate 109 and the left interlocking plate 110 described above.
2. Each rack 109B is sandwiched between
2, 110B2.

The bottom cover 103 has a rectangular plate shape, and its longitudinal direction is disposed above the support plate 102 along the front-back direction. The bottom lid 103 has an extension 109B of the right interlocking plate 109 and a left interlocking plate 11
0 is positioned on the support plate 102 with the extension 110B of the main body 101 interposed therebetween.
02 and is fixed between them.

The positioning of the bottom cover 103 with respect to the support plate 102 is performed as follows. That is, the bottom cover 103
Of the bottom cover 103 are formed on the left and right sides of the rear side edge of the bottom cover 103. The notch 103C fits into the left and right convex portions 102F provided near the rear edge of the upper surface of the support plate 102 so as to sandwich the center line of the support plate 102 in the left and right direction. The support plate 102 is positioned. Further, screw insertion holes 102G penetrating vertically are provided at the centers of the left and right convex portions 102F, and screws 806 are inserted into these screw insertion holes 102G.

The bottom cover 103 is provided with two projections 103D forward and two projections 103D rearward with the screw hole 103A interposed therebetween, protruding downward in the thickness direction of the bottom cover 103. Each convex part 103
D is a strip-shaped portion that extends in a direction orthogonal to the longitudinal direction of the bottom lid 103 and that is sandwiched between two long grooves formed through the bottom lid 103 in the thickness direction. The band-shaped portion is formed so that the center in the longitudinal direction is curved downward in the thickness direction of the bottom lid 103. These four convex portions 103D are provided on the extending portion 1 of the right interlocking plate 109.
09B and the upper surface of the extending portion 110B of the left interlocking plate 110 are provided with a pressing force to apply a frictional force when the right interlocking plate 109 and the left interlocking plate 110 move in the left-right direction. This frictional force causes each of the mirror bodies 300 and 40 to be described later.
The operation feeling at the time of moving operation in the left and right directions of 0 can be improved.

According to the above configuration, since the rack 109B2 of the right interlocking plate 109 and the rack 110B2 of the left interlocking plate 110 are engaged with the gear 105, the right interlocking plate 109 and the left interlocking plate 110 move in the left-right direction. It moves in conjunction with the approaching direction or the separating direction. Also, the rack 109B
2. Since the pitch of the teeth of the rack 110B2 and the gear 105 is configured to be the same, the right interlocking plate 109 and the left interlocking plate 110 are the same in opposite directions in the left and right directions about the rotation center of the gear 105. It moves only a distance.

A through hole 103G is provided at a position between the left and right convex portions 103B near the front side of the bottom cover 103. The diopter makeup ring 106 has a diameter of the through hole 10.
A disk-shaped main body 106A larger than the inner diameter of 3G, and a shaft portion 106B protruding upward from the upper center of the main body 106A.
And a screw hole 106C provided in the shaft portion 106B along the axial direction. Then, as described later, the diopter difference is adjusted by rotating the main body 106A about the axis of the shaft portion 106B. Also,
Around the shaft portion 106B, two concave portions 106D are provided so as to sandwich the shaft portion 106B, and an arc-shaped concave groove 106E is formed along the circumferential direction of the shaft portion 106B. Here, if at least one of the concave portion 106D and the convex portion 107C is at least one, transmission of the axial rotation drive is possible.

The diopter difference eccentric seat 107 has a disc-shaped main body 107A whose diameter is larger than the inner diameter of the through hole 103G,
It comprises an eccentric hole 107B penetrating in the thickness direction at a position eccentric from the center of the main body 107A, and two convex portions 107C fitted into two concave portions 106D of the dioptric makeup ring 106.

The shaft portion 106B of the diopter makeup ring 106 is inserted into the through hole 103G from below the back cover 103, and is inserted into the eccentric hole 107B of the diopter eccentric seat 107. In this state, the two convex portions 107C of the diopter difference eccentric seat 107 are fitted into the two concave portions 106D of the diopter makeup ring 106, respectively. The eccentric hole 107B of the diopter difference eccentric seat 107
A screw 805 is inserted through a spring washer 804, and a shaft portion of the screw 805 is screwed into a screw hole 106 </ b> C formed in a shaft portion 106 </ b> B of the diopter makeup ring 106 so that the diopter difference eccentric seat 107 is formed. Is attached to a dioptric makeup ring 106 via a bottom cover 103. Further, as shown in FIG. 6, the main body 106 of the dioptric makeup ring 106 is in this state.
A is a support plate 1 through a through hole 102C of the support plate 102.
02 is facing outward from the lower surface of 02. Also,
Diopter makeup ring 106 attached to diopter eccentric seat 107
Are located near the front side on the center line of the support plate 102 in the left-right direction.

Also, a through hole 103G on the lower surface of the bottom lid 103
Is formed in the peripheral edge of the through hole 103 </ b> G in the circumferential direction.
It is configured to be rotatable in a state fitted with 06E. Then, a diopter makeup ring 1 is provided at the circumferential end of the ridge.
The amount of rotation of the diopter makeup ring 106 is regulated by contacting the circumferential end of the concave groove 106E of No. 06. The diopter makeup ring 106 and the diopter difference eccentric seat 107 are integrally fixed in the rotation direction of the shaft portion 106B by fitting the concave portion 106D and the convex portion 107C.
06B are configured to be mutually movable in the axial direction.

Also, a through hole 103G on the upper surface of the back cover 103
Of the click engaging portion 10 formed of a plurality of irregularities extending at intervals in the circumferential direction of the through hole 103G.
When 3H is formed and the diopter difference eccentric seat 107 rotates,
When the convex portion provided on the lower surface of the diopter difference eccentric seat 107 is disengaged from the click engagement portion 103H, a click feeling is given when the diopter makeup ring 106 is rotated. ing. At this time, the spring washer 804 has a function of pressing the lower surface of the main body 107A of the diopter difference eccentric seat 107 toward the click engaging portion 103H.

As shown in FIG. 9, FIG. 10, FIG. 18, and FIG. Right wall 101C and left wall 10 connecting the parts
1D. The top and bottom of the main body 101 are opened in a rectangular shape. The bottom of the main body 101 is the bottom lid 1
03 is attached to the support plate 102 in a state of being covered with 03. That is, the four screws 806 are inserted through the four screw insertion holes 102G formed in the support
It is screwed into each of the four screw holes 101E formed at the four corners of the bottom of the unit 1.

The upper plate 104 has a rectangular plate shape having substantially the same size as the support plate 102, and has a longitudinal edge before and after the edge of the binoculars, and a lateral edge perpendicular to the longitudinal direction of the binoculars. It is arranged so that it may be located on each side. That is, the upper plate 104 extends in the optical axis direction of the telescope optical system and in the left-right direction orthogonal to the optical axis direction. The upper plate 104 is attached so as to close the upper opening 101K of the main body 101. That is, four screws 80
7 are four screw insertion holes 104 formed in the upper plate 104.
A is inserted and screwed into four screw holes 101F formed at the four upper corners of the main body 101, respectively. Upper plate 10
Window portions 104A, 10A through which a part of the outer periphery of a focus adjustment ring 202 and a part of the outer periphery of a zoom adjustment ring 204, which will be described later, respectively face outward are located on the center line in the left-right direction of FIG.
4B is provided. Also, the front wall 101 of the main body 101
A rectangular decorative plate 101I and a nameplate 101J are bonded to the front surface of A and the rear surface of the rear wall 101B, respectively.

According to the support portion 100 described above, the main body 10
1. The support plate 102, the bottom cover 103, and the upper plate 104 are integrally fixed. The right interlocking plate 109 and the left interlocking plate 110 are supported by the support plate 102 so as to be movable in the left-right direction.

Next, the configuration of the optical adjustment section 200 will be described. The optical adjustment unit 200 includes a main shaft 201, a focus adjustment ring 202, a zoom adjustment ring 204 (corresponding to a zoom adjustment member in the claims), a moving shaft 206, a cam ring 207, and a first Lens top 2
08 (corresponding to the moving member in the claims), the second lens frame 209 (corresponding to the moving member in the claims), the cam frame 210, the frame guide shafts 211 and 212, and the first lens interlocking plate 213 (the claims). The second lens interlocking plate 214 (corresponding to the second member in the claims), the holding plate (blade) 215, the mirror interlocking shaft 216, and the like are provided.

The main shaft 201 has a mirror body 3 whose axis is described later.
The front end and the rear end of the main body 101 extend parallel to the optical axes 00 and 400, respectively.
A and bearing portions 101A provided on the rear wall 101B, respectively.
1 and 101B1 (see FIGS. 52 and 5).
3). As will be described later, the focus adjustment ring 202 and the zoom adjustment ring 204 are provided so as to be rotatable about the axis of the main shaft 201. Also, the diopter makeup ring 106 described above is used.
Is provided so as to be rotatable around an axis orthogonal to the axis of the main shaft 201. On the outer peripheral surface of the front end portion of the main shaft 201,
Recesses 201A extending along the axial direction are formed at intervals in the circumferential direction. The concave groove 201A is formed in a convex portion 20 formed in a hole 207A of a cam ring 207 described later.
7B.

The main shaft 201 has a mirror body 3 whose axis is described later.
The front end and the rear end of the main body 101 extend parallel to the optical axes 00 and 400, respectively.
A and bearing portions 101A provided on the rear wall 101B, respectively.
1, 101B1 (FIGS. 18 and 1).
9). The main shaft 201 is configured such that the position of the axis in the left-right direction coincides with the center position of the main body 101 in the left-right direction. The main shaft 201 is configured so that the vertical position of its axis is higher than the vertical position of the optical axis of the left and right telescope optical systems described later.
The focus adjustment ring 202 and the zoom adjustment ring 204 are provided rotatably about the axis of the main shaft 201. Further, the diopter makeup ring 106 described above is provided so as to be rotatable around an axis orthogonal to the axis of the main shaft 201. Spindle 201
On the outer peripheral surface of the front end portion, there are formed grooves 201A extending in the axial direction at intervals in the circumferential direction. This concave groove 201A is provided with a hole 207A of a cam ring 207 described later.
Is fitted to the ridge 207B.

The zoom adjustment ring 204 comprises a ring-shaped main body 204A and a rubber ring 204B mounted on the outer periphery of the main body 204A. The main body 204A is
The main shaft 201 is integrally attached to the main shaft 201 by screws 808 in a state where the rear end of the main shaft 201 is inserted into the hole 204A1 in the inner peripheral portion.

The cam ring 207 is formed in the shape of a cylindrical wall having a thickness in the axial direction and the circumferential direction, and the convex portion 207B fitted in the concave groove 201A of the main shaft 201 is formed in the hole 207A along the axis. The main shaft 20 is formed on the inner peripheral surface 207A.
1 can be moved along the spindle 201 in a state where it is inserted,
Further, the main shaft 201 is supported by the main shaft 201 so as not to rotate in the circumferential direction. Outer peripheral surface 207C of cam ring 207
Have two first cam grooves 207D and two second cam grooves 2
07E is formed.

The moving shaft 206 is formed between a cylindrical first shaft portion 206A provided on the rear side, a second shaft portion 206B provided on the front side, and the first and second shaft portions. The flange portion 206C, the first shaft portion 206A, and the flange portion 2
06C, and a hole 206D penetrating through the second shaft portion 206B in the axial direction of the moving shaft 206. The inner diameter of the hole 206D is formed so that the main shaft 201 can rotate when the main shaft 201 is inserted.

A spiral guide groove 206A1 is formed on the outer peripheral surface of the first shaft portion 206A.
6A1 includes a first groove portion 206A11 having a large pitch in the axial direction of the first shaft portion 206A, and a second groove portion 206A12 connected to the first groove portion 206A11 and having a small pitch in the axial direction of the first shaft portion 206A. The first groove portion 206A11 is provided on the rear side of the shaft portion 206A, and the second groove portion 206A is provided on the rear side.
A12 is provided. The focus adjustment ring 202 includes an annular main body 202A and a rubber ring 202B attached to the outer periphery of the main body 202A. The outer diameters of the focus adjustment ring 202 and the zoom adjustment ring 204, that is, the rubber ring 2
The outer diameters of 02B and 204B are configured to be substantially the same. On the inner peripheral surface 202A1 of the main body 202A,
A holding portion 202A11 that holds the two spheres 203 engaged with the guide groove 206A1 so as to be able to rotate and not to move around the axis is provided at a position facing each other about the axis.

The cam frame 210 has a substantially annular shape, and its inside 210A has the shaft 21 at a position symmetrical with respect to the axis.
1 and 212 are held in a state of extending in parallel with the axis, and a first lens piece 208 and a second lens piece 209 are provided movably along axes 211 and 212, respectively. The cam frame 210 is supported by the inner surface 101C1 of the right wall 101C of the main body 101 and the inner surface 101D1 of the left wall 101D so as to be movable in the axial direction (front-rear direction) of the main shaft 201 and non-rotatably around the axis.

Further, the rear ends of the right arm 210C1 and the left arm 210C2 of the annular portion 210A of the cam frame 210 have screw holes 210C11 and 210C facing rearward at positions facing rearward.
21 are provided. Further, a screw hole (not shown) facing rearward is provided in a portion facing rearward of the connecting arm 210D. These screw holes 210C11, 210C21,
As shown in FIG. 11, screw insertion holes 206C1, 206C2, and 206C provided in a flange portion 206C of the moving shaft 206 are provided in screw holes (not shown) facing the rear.
3 is screwed into each of the screws 809,
The cam frame 210 is attached to the moving shaft 206. Further, a screw hole 210D1 facing downward is provided at the rear end of the connecting arm 210D.

As shown in FIGS. 9, 10, and 11, the right and left edges of the flange portion 206C of the moving shaft 206 project from the convex portions 206C4 and 206C5, respectively.
Is protruding. As shown in FIGS. 18 and 19, the guide grooves 1 are formed at the upper edges of the inner surface 101C1 of the right wall 101C of the main body 101 and the inner surface 101D1 of the left wall 101D.
01C11 and 101D11 are formed to extend in the optical axis direction. The convex portions 206C4 and 206C5 of the moving shaft 206 are respectively provided on the guide grooves 101C11 and 101D1 of the main body 101.
By moving and supporting the movable shaft 206 and the cam frame 210 in the axial direction (front-back direction) of the main shaft 201 and rotating in the direction around the axis by being slidably supported in the axial direction in the state of being engaged with 1. It has become supported by impossibility. Each of the projections 206C1 and 206C2 is a guide groove 1
Step 1 provided on the front side of 01C11, 101D11
01C12, 101D12, the moving shaft 20
6 is restricted, and each convex portion 206C4, 206C
5 is a wall 10 behind the first housing 101G of the main body 101
The rear side position is regulated by abutting on 1G1. The hole 207A of the cam ring 207 has a moving shaft 2
06 is inserted through the second shaft 206B, and the cam ring 207 is rotatably supported by the second shaft 206B. The cam frame 210 accommodates the cam ring 207 in the flange portion 206 </ b> C of the moving shaft 206 with three screws 809.
The cam frame 210 and the moving shaft 206 are integrally fixed.

The lower edge of the right wall 101C and the lower edge of the left wall 101D of the main body 101 are respectively provided with guides formed of ridges extending in the axial direction, that is, the optical axis direction. Parts 101C2 and 101D2 are provided at intervals in the left-right direction. These two guides 101C
Reference numeral 2, 101D2 supports first and second lens connecting members 213, 214 described below so as to be movable in the optical axis direction and immovable in a direction orthogonal to the optical axis direction.

The first lens piece 208 is a cam ring 2
07 of two spheres 210 engaged with the first cam groove 207D
It has a holding portion (spherical concave portion) for holding B in a rotatable manner with the first cam groove 207D. On the other hand, the second lens piece 209 has a holding portion that holds the two spheres 210B engaged with the second cam groove 207E of the cam ring 207 so as to be able to rotate between the two spheres 210B and the second cam groove 207E. When the main shaft 201 rotates and the cam ring 207 held by the cam frame 210 rotates, the first and second cam grooves 207D and 207E of the cam ring 207 rotate with respect to the cam frame 210.
By this rotation, the first lens piece 208 and the second lens piece 209 move within the cam frame 210 along the optical axis direction.

Here, the first lens frame 208 and the second lens frame 209 are arranged at right and left portions of the cam frame 210 in the cam ring 2.
07 are supported and arranged so as to sandwich each other, and move in opposite directions along the optical axis direction. As a result, the moving ranges of the first lens piece 208 and the second lens piece 209 in the optical axis direction overlap each other. ing. A mounting portion 208A having a screw hole extending in the vertical direction is provided at a position facing the lower portion of the lower portion of the first lens piece 208, and the mounting portion 208A is provided on the frame engaging portion 2 of the first lens interlocking plate 213.
13C is attached by a screw 811 in the engaged state. A mounting portion 209A having a screw hole extending in the vertical direction is provided at a position facing the lower part of the lower part of the second lens piece 209, and the mounting part 209A is engaged with the frame engaging part 214C of the second lens interlocking plate 214. In this state, it is attached by a screw 812.

The holding plate 215 has a rectangular plate shape and is provided with a hole 215B penetrating in the thickness direction. The screw 810 inserted through the hole 215B is screwed into the screw hole 210C1 of the mounting portion 210C provided on the bottom wall of the cam frame 210.
Is attached to the cam frame 210 by being screwed into the cam frame 210. Therefore, the holding plate 215 is connected to the moving shaft 206 and the cam ring 20.
7. It is provided movably in the front-rear direction integrally with the cam frame 210. A first lens interlocking plate 213 and a second lens interlocking plate 214 are provided between the holding plate 215 and the lower part of the main body 101. First lens interlocking plate 213
Is attached to the first lens piece 208 by a screw 811, and is configured to move integrally with the first lens piece 208. The second lens interlocking plate 214
The second lens piece 209 is attached to the second lens piece 209 by a screw 812, and is configured to move integrally with the second lens piece 209.

As shown in FIG. 20, the first lens interlocking plate 213 has a rectangular plate-like first central portion 213A connected to the first lens piece 208 and right and left edges of the first central portion 213A. The first arm portion 213B (corresponding to the second main body portion in the claims) is formed integrally with the first arm portion 213B that is bent downward once and then linearly extends left and right in the left-right direction. . The first central portion 213A is provided with a frame engaging portion 213C which is engaged with the mounting portion 208A of the first lens frame 208 and is attached with the screw 811. Also, the first central portion 213 of the right and left first arm portions 213B.
A guided portion 213E, 213F formed of a ridge extending along the axis is provided at a portion facing below the portion joined to A.
Is provided. That is, the right and left first arm portions 2
13B extends rightward and leftward from the guided portions 213E and 213F. These guided parts 213
E and 213F are guide portions 101C of the main body 101 described above.
2 and 101D2 are supported so as to be movable in the optical axis direction while being engaged with each other.

The first central portion 213A is supported movably in the front-rear direction with its lower surface and upper surface in the thickness direction sandwiched between the holding plate 215 and the bottom of the main body 101, respectively. Also, the upper surface 213B1 of the first arm portion 213B
The right and left ends of the (corresponding to the second surface in the claims) have concave grooves 213D facing upward along the arm extending direction.
(Corresponding to an engagement concave portion in the claims), and these two concave grooves 213D are provided with first lens frames 307A of first lens portions 307 and 407 of right and left telescope optical systems described later. , 407A (corresponding to the first member in the claims) are engaged so as to be movable in the left-right direction.

As shown in FIG. 21, the second lens interlocking plate 214 has a rectangular plate-like second central portion 214A connected to the second lens piece 209 and right and left edges of the second central portion 214A. A second arm portion 214B (corresponding to a second main body portion in the claims) that is once bent downward and then linearly extends left and right in the left-right direction is integrally formed. . The second central portion 214A has the second
An extending portion 214A1 extending forward from the central portion 214A is provided, and a screw 8 is engaged with a mounting portion 209A of the second lens piece 209 at a position near the front of the extending portion 214A1.
A frame engaging portion 214C attached at 12 is provided. The rear portion of the lower surface of the extending portion 214A is connected to the upper surface of the second central portion 214A, and the lower surface of the extending portion 214A and the upper surface of the second central portion 214A have the same height position. I have. Also, the right and left second arm portions 214B
Guided portions 214E and 214F formed of ridges extending along the axis are provided at portions facing below the portion joined to the second central portion 214A. That is, the right and left second arm portions 214B are connected to the guided portions 214E and 21E.
It extends rightward and leftward from the location 4F.

The guided portions 214E and 214F are supported so as to be movable in the optical axis direction while being engaged with the guide portions 101C2 and 101D2 of the main body 101, respectively. The second central portion 214A is supported movably in the front-rear direction with its lower surface and upper surface in the thickness direction being sandwiched between the holding plate 215 and the bottom of the main body 101, respectively. The right and left ends of the upper surface 214B1 (corresponding to the second surface in the claims) of the second arm portion 214B include
A concave groove 214D is formed along the extending direction of the arm,
In these two concave grooves 214D, second lens frames 308A and 408A (corresponding to first members in claims) of second lens units 308 and 408 of right and left telescope optical systems described later are arranged in the left-right direction. It is configured to be movably engaged.

First and second lens interlocking plates 213 and 214
The first lens interlocking plate 213 is located forward in the optical axis direction, the second lens interlocking plate 214 is located rearward in the optical axis direction in a state sandwiched between the holding plate 215 and the bottom of the main body 101, and The extension part 214A1 of the second central part 214A is disposed in contact with the upper surface of the one central part 213A. And
In this state, the first and second central portions 213A and 214A have substantially the same height position so that the first and second arm portions 213B and 214B have substantially the same height position. It is configured to be.

Further, a hole 215A penetrating in the left-right direction is formed at a position near the front of the holding plate 215, and the mirror interlocking shaft 216 is inserted into the hole 215A and the right and left portions are held. The plate 215 is held by the holding plate 215 in a state of extending outward from left and right edges. And
Right moving body 30 holding right and left eyepieces, which will be described later.
3 and the left moving body 403 are provided with an engaging portion 303A1, which is movably engaged with the mirror interlocking shaft 216 in the axial direction thereof.
403A1 is provided, and the right moving body 303 and the left moving body 40 are provided.
Reference numeral 3 is configured to be movable in the left-right direction along the lens body interlocking shaft 216 and to move in the front-rear direction integrally with the lens body interlocking shaft 216.

The mirror interlocking shaft 216 held by the presser plate 215 is connected to a first lens interlocking plate 123 and a second lens interlocking plate 124 disposed between the presser plate 215 and the bottom of the main body 101. It is provided so as to be located between them.
The first and second lens interlocking plates 123 and 124 are connected to the first and second lens pieces 208 and 209, respectively, and the first and second lens pieces 208 and 209 are supported by the cam ring 207 and the cam frame 210. , Cam ring 207
The cam frame 210 is provided so as to be movable integrally with the press plate 215 in the axial direction, that is, in the optical axis direction. Therefore, the first and second lens interlocking plates 123 and 124 and the holding plate 215 are also provided so as to be integrally movable in the optical axis direction. The reference numerals 123 and 124 are adapted to be moved in the optical axis direction integrally with the holding plate 215.

As shown in FIGS. 11 and 52, a main body 101 supports a focus adjustment ring 202 rotatably and axially immovable with a focus adjustment ring 202 accommodated therein. Housing portion 101G and zoom adjustment ring 204
The second housing portion 101H which supports the zoom adjustment ring 204 rotatably and immovably in the axial direction in a state where
Are formed at intervals in the axial direction. The first housing portion 101G includes a front wall portion 101G1 and a rear wall portion 101G.
The second housing portion 101H is configured to be sandwiched between the wall portion 101G2 and the rear wall 101B of the main body 101.

According to the above configuration, when the zoom adjustment ring 204 is rotated without rotating the focus adjustment ring 202, the main shaft 201 fixed to the zoom adjustment ring 204 is rotated.
Then, the cam ring 207 fixed to the front end of the main shaft 201 is rotated inside the cam frame 210. Thereby, the first and second cam grooves 207 formed on the outer peripheral surface of the cam ring 207 are formed.
D and 207E rotate with respect to the cam frame 210. Then, the first lens piece 208 engaged with each sphere 210B,
The second lens piece 209 includes first and second cam grooves 2 respectively.
In conjunction with the rotation of 07D and 207E, it is guided by the shafts 211 and 212 and is moved along the axial direction of the main shaft 201.
At this time, the first lens piece 208 and the second lens piece 209
Moves in the axial direction, that is, in the opposite direction along the optical axis direction, as described above.

On the other hand, if the focus adjustment ring 202 is rotated without rotating the zoom adjustment ring 204, the main shaft 201 is not rotated, and only the rolling wheel 204 is rotated. Then, the sphere 203 engaged with the main body 202A of the focus adjustment ring 202 is not moved in the axial direction of the main shaft 201, but is rotated around the axis while being engaged with the guide groove 206A1 of the moving shaft 206. As a result, the moving shaft 206 and the cam frame 210 fixed integrally with the moving shaft 206
Is moved along the axial direction of. As described above, the guide groove 206A1 has the first groove portion 206A11 having a wide pitch.
The second pitch connected to the first groove 206A11 and having a narrow pitch.
And a groove 206A12. Therefore, in a state where the sphere 204B is moving in the range of the first groove 206A21 and in a state where the sphere 204B is moving in the range of the second groove 206A12, the moving shaft 206 and the cam for the same rotation angle of the focus adjustment ring 202 are different. The moving amount of the frame 210 is larger in the former than in the latter. This is because in the former range, a part of the mirror body is quickly retracted, and in the latter range, the distance between the eyepiece and the objective lens, that is, the focus is finely adjusted.

Next, the structure of the right mirror 300 and the left mirror 400 will be described. The right mirror 300 and the left mirror 400
Are different from each other mainly in that they are symmetrical in shape, and are often functionally the same. Accordingly, in the following description, the components on the right lens body side will be described except for the parts having different functions in the left and right, and will also serve as the description of the components on the left lens body side. Also, as will be described below, the parts of the right mirror are numbered 300s, and the parts of the left mirror are numbered 400s, and correspond to each other among the parts constituting the right and left mirrors. The last two digits of the parts and alphabetic characters are assigned in common.

As shown in FIG. 8, the right body 300
Are a right frame 301, a right frame lid 302, a right moving body 303 (corresponding to a support member in the claims), a right eyepiece 304, a right objective section 305, a prism section 306, a first lens section 307,
The camera includes a second lens unit 308, an eyepiece unit 309, a right exterior unit 310, and the like. First, the configuration of the right mirror 300 will be schematically described. A right frame 301, a right frame lid 302 attached to the right frame 301, a right objective unit 305, and a right exterior unit 310 are described.
Is attached to the above-mentioned right interlocking plate 109 (see FIG. 7),
It is configured to be movable in the left-right direction together with the right interlocking plate 109.

The right moving body 303 is provided to be slidable in the front-rear direction with respect to the right frame 301. A prism unit 306 is attached to the front of the right moving body 303,
A right eyepiece 304 is attached to the rear of the right moving body 303,
An eyepiece 309 is attached to the rear of the right eyepiece tube 304. Further, a first lens unit 307 and a second lens unit 308 are provided between the right moving body 304 and the right eyepiece 304 so as to be slidable in the front-rear direction. That is, of the objective unit 305, the prism unit 306, the first lens unit 307, the second lens unit 308, and the eyepiece unit 309 that constitute the right telescope optical system, the objective unit 305 is attached to the right frame 301, The prism unit 306, the first lens unit 307, the second lens unit 308, and the eyepiece unit 309 are attached to the right moving body 303. Therefore, when the right moving body 303 slides in the front-rear direction with respect to the right frame 301, the objective section 305, the prism section 306, and the first lens section 30 are moved.
7, the distance between the second lens unit 308 and the eyepiece unit 309,
That is, the focal length is adjusted.

Next, the structure of the right lens body 300 will be described in more detail with reference to FIGS. 8, 12 to 14. The right frame 301 is provided with a holding portion 301B for holding the rear portion of the right guide shaft 301A at a middle position in the height direction on the right side of the rear portion, and the right frame 301 is attached to the right interlocking plate 109 below the holding portion 301B. Screw hole 301 into which the screw to be attached is screwed
C is provided (see arrow B). The attachment of the right frame 301 to the right interlocking plate 109 will be described in detail with reference to FIG. The screws 820, 820 are the long holes 1 of the support plate 102.
02H1, 102H2 and screw insertion hole 1 of right interlocking plate 109
A screw hole (not shown) provided at the rear of the right frame 301 and a screw hole (not shown) of a frame lid 302 described later are screwed through 09C1 and 109C2. At this time, the heads of the screws 820, 820 are configured to be able to move in the left-right direction without interfering with the edges of the long holes while being positioned in the long holes 102H1, 102H2 of the support plate 102. ing. The screws 821 and 821 are screwed into front and rear screw holes (the front screw holes correspond to the screw holes 301C) provided in the right frame 301 via the screw insertion holes 109D1 and 109D2 of the right moving body 109. . At this time, the heads of the screws 821, 821 can move to positions within the notches 102J1, 102J2 of the support plate 102, and can move in the left-right direction without interfering with the edges of these notches. It is configured so that Thus, the screws 820, 821
Thereby, the right frame 301 is attached to the right interlocking plate 109.

Incidentally, a left frame 401 described later (see FIG. 15).
The attachment to the left interlocking plate 110 is the same as described above, and will be described here. That is, the screws 822 and 822 are screw holes (not shown) provided at the rear part of the left frame 401 to be described later through the long holes 102I1 and 102I2 of the support plate 102 and the screw insertion holes 110C1 and 110C2 of the left interlocking plate 110. Screwed into a screw hole (not shown) of the frame lid 402. At this time, the heads of the screws 822, 822 are located in the long holes 102I1, 102I2 of the support plate 102, and can be moved in the left-right direction without interfering with the edges of these long holes. Have been. Also, screws 823, 823
Are screw insertion holes 110D1 and 110D2 of the left interlocking plate 110.
Front and rear screw holes (not shown) provided in left frame 401 through
Screwed. At this time, the heads of the screws 823, 823 can move to positions within the notches 102K1, 102K2 of the support plate 102, and can move in the left-right direction without interfering with the edges of these notches. It is configured so that Thus, the left frame 401 is attached to the left interlocking plate 110 by the screws 822 and 823.

Returning to the description of the structure of the right lens body 300, FIG. Right frame 3
01 is provided with a holding portion 301E for holding the rear portion of the left guide shaft 301D at a middle position in the height direction on the rear left portion (see arrow A). A screw hole 301F is provided at an intermediate position in the height direction of the right wall portion near the front portion of the right frame 301, and between the head of the screw 814 screwed into the screw hole 301F and the right wall portion. The guide shaft 301A is held by the front portion of the guide shaft 301A being sandwiched between them.

A screw hole 301G is provided at the upper right corner of the front wall of the right frame 301. Then, the right frame cover 30
The screw 814 is inserted into the screw hole 3 through the screw insertion hole 302A of the second screw.
The right frame lid 302 is attached to the front part of the right frame 301 by screwing it to 01G. The right frame lid 302 holds the front part of the guide shaft 301D. Further, a screw hole 302B is provided in a front portion of the right frame lid 302, and a screw 815 is provided in the front wall 3 of the right exterior 310A.
The front portion of the right frame 301 and the front wall 310A of the right exterior 310A are screwed into the screw holes 302B through the screw insertion holes 310A22 provided in the 10A2, and the right frame lid 302 is used.
2 is fixed.

A screw 816 is provided in the screw insertion hole 310A41 provided in the right side wall 310A4 of the right exterior 310A.
The right side of the right frame 301 and the right side wall 310A4 of the right exterior 310A are fixed by being screwed into a position above the screw hole 301F of the right frame 301 via the. Also,
A screw hole 301H is provided in a rear left wall portion of the right frame 301, and a screw 817 is provided in the rear wall 310A of the right exterior 310A.
By screwing into the screw hole 301H via the screw insertion hole 310A32 provided in A3, the rear part of the right frame 301 and the rear wall 310A3 of the right exterior 310A are fixed. Further, a hole 301J facing rearward is provided in a rear left wall portion of the right frame 301.
The fitting projection 310C2 of the right rear cover 310C described below
Are fitted.

The right exterior 310 includes a right exterior 310A, a right front cover 310B, a right rear cover 310C, and the like. The right exterior 310A includes a bottom wall 310A1 and a bottom wall 3
Front wall 3 upright from front and rear and right edge of 10A
10A2, a rear wall 310A3, and a right wall 310A4, and an upper wall 310A5 connecting upper portions of the front wall 310A2, the rear wall 310A3, and the right wall 310A4.

The front wall 310A2 is formed with an opening 310A21 for allowing an objective lens 305C described later to face outward, and the rear wall 310A3 is configured to face a third lens 309C of an eyepiece described later to the outside. Opening 3
10A31 are formed. The focus adjustment ring 202 described above is provided at a position near the rear of the right edge of the upper wall 310A5.
A concave notch 310A51 for making the zoom adjustment ring 204 face outward is formed. Right front cover 310B
Is attached to the front side of the front wall 310A2 by a double-sided tape 310D with the opening 310B1 aligned with the opening 310A21.

The right rear cover 310C is
The rear wall 310A3 is attached to the rear side of the rear wall 310A3 with the double-sided tape 310E with C1 aligned with the opening 310A31. As shown in FIGS. 5 and 12,
The rear wall 310A3 of the right exterior 310A is provided with a through hole 310A33 at a position corresponding to the hole 301J of the right frame 301, and the fitting projection 310C2 of the right rear cover 310C is provided.
Is the hole 3 of the right frame 310 through the through hole 310A33.
By being fitted with 01J, the right rear cover 310C is positioned with respect to the right frame 310 and the right exterior 310A. Further, a semicircular recess 310A11 is formed at a position near the left edge of the bottom wall 310A1 of the right exterior 310A. The recess 310A11 is provided so that the dioptric makeup ring 106 and the bottom wall 310A1 do not interfere with each other.

The objective section 305 includes a right objective frame 305A, an objective holding ring 305B, an objective lens 305C, and the like. The right objective frame 305A is a cylindrical wall-shaped main body 305A.
1, a first holding portion 305A2 provided on the right side of the main body 305A1, and a second holding portion 305A3 extending rearward from the left side of the main body 305A1 (corresponding to the left guide shaft holding portion in the claims) And an engaging portion 305A4 extending leftward from the front of the second holding portion 305A3. The inner peripheral portion of the main body 305A1 is configured to hold the outer peripheral edge of the objective lens 305C, and a female screw formed on the inner peripheral portion is screwed with a male screw formed on the outer peripheral portion of the objective holding ring 305B. Objective lens 305C with body 3
05A1 and the objective holding ring 305B.

The first holding portion 305A2 is provided movably in the axial direction of the guide shaft 301A while holding the guide shaft 301A. A bearing hole 305A31 is provided in the second holding portion 305A3 with the axial center thereof oriented in the front-rear direction, and the guide shaft 301D is inserted into the bearing hole 305A31. The second holding portion 305A3 is
01D is provided so as to be movable in the axial direction of the guide shaft 301D while being held. Therefore, the objective frame 305A
Is configured to be movable in the front-rear direction along the guide shafts 301A and 301D. Therefore, the objective lens 305C held in the right objective frame 305A has a position in the optical axis direction with respect to the right frame 301,
It is configured so that it can be set at any position on the axis of 01D.

The engaging portion 305A4 has a rectangular plate shape, and the engaging wall portion 305A4 extends downward from its front edge and rear edge.
1 are respectively standing. These two engagement walls 3
05A41 are provided extending in the left-right direction in parallel with each other at intervals. And these 2
The diopter difference eccentric seat 107 is provided between the two engagement wall portions 305A41.
When the diopter difference eccentric seat 107 is rotated, the diopter difference eccentric seat 1 is eccentrically rotated.
Each engagement wall portion 305A41 comes into contact with the outer peripheral surface of the reference numeral 07 and is moved in the front-rear direction. That is, when the diopter difference eccentric seat 107 is rotated, the right objective frame 305A is integrated with the guide shafts 301A and 301D.
It is designed to be moved back and forth along the 1D axis direction, that is, the optical axis direction.

Next, the right moving body will be described with reference to the drawings. 22 is a plan view of the right moving body, FIG. 23 is a front view of the right moving body showing FIG. 22 viewed from the direction of arrow F1, and FIG. 24 is a right view of the right moving body showing FIG. FIG. 25 is a rear view of the right moving body showing FIG. 22 as viewed from arrow F3, and FIG. 26 is a bottom view of the right moving body showing FIG. 23 as viewed from arrow F4. As shown in FIGS. 22 to 26, the right moving body 303 includes a rectangular bottom wall 303A, a rear wall 303B rising from the rear edge of the bottom wall 303A, and a left edge of the bottom wall 303A. And a side wall 303C standing upright. In FIG. 18, an engagement portion 303A1 extending in the left-right direction is provided at substantially the center of the left edge of the bottom wall 303A in the front-rear direction.
The engaging portion 303A1 is adapted to be movably engaged with the above-mentioned body interlocking shaft 216 in the axial direction thereof. The rear wall 303B has a circular hole 303B at its center.
1 is provided. A bearing portion 303D through which the guide shaft 301a is inserted is provided at the lower right edge of the rear wall 303B.
A bearing 303E through which the guide shaft 301b is inserted is provided at a lower left portion of the rear wall 303B. That is, the right moving body 303 is configured to be coupled to the guide shafts 301a and 301b via the bearings 303D and 303E. That is, the guide shafts 301a and 301b extend in parallel with the optical axis and are coupled to bearings 303D and 303E, respectively, which are outer portions of the moving body 303 that is away from the optical axis, thereby moving the moving body 303 in the optical axis direction. It is designed to be guided so that it can be moved to.

As shown in FIGS. 25 and 26, the lower surface 303A1 of the bottom wall 303A (corresponding to the plane portion in the claims) faces downward and extends linearly along the optical axis direction. Two extending guide grooves 303A2, 303A3 (corresponding to the guide grooves in the claims) are provided at intervals in a direction orthogonal to the optical axis. First lens frame 3 described later
07A of engagement arm 307A2 and second lens frame 308A
The engaging arm 308A2 of these guide grooves 303A2,
Each of them is supported so as to be movable in the direction of the optical axis while being inserted into each of 303A3.

The prism section 306 includes a holder 306A, an intermediate plate 306B, a holder cover 306C, a fine moving plate 306D, a first prism 306E, a second prism 306F, and the like. The holder 306A includes a first prism 306
E, a top wall 306A1 and a bottom wall 306A2 that hold the top and bottom surfaces of the second prism 306F, and a top wall 306A.
1 and a rectangular rear wall 306A3 connecting the rear edges of the bottom wall 306A2.

First Prism 30 Constituting Upright Prism
6E and the second prism 306F are configured so that light rays pass in this order, and an intermediate plate 3 is provided between the exit surface of the first prism 306E and the entrance surface of the second prism 306F.
06B is arranged, and the upper wall 306 of the holder 306A is placed.
A1 and the bottom wall 306A2 are adhered and fixed. The holder lid 306C is attached to the upper wall 306 of the holder 306A.
The first prism 306E is composed of a front wall 306C1 and right and left side walls 306C2, 306C3 standing rearward from left and right edges of the front wall 306C1 so as to connect a front edge and a side edge of the bottom wall 306A2. An opening 306C11 through which light passes is provided in the front wall 306C1 facing the light incident surface.

The second wall is also provided on the rear wall 306A3 of the holder 306A.
An opening through which light emitted from the prism 306F passes is provided. A fine moving plate 306 is provided between the rear surface of the rear wall 306A3 of the holder 306A and the rear wall 303B of the moving body 303.
D is provided, and an opening 3 through which light passes is provided in the center thereof.
06D1 is provided. Rear wall 30 of holder 306A
In 6A3, screw holes 306A31 are formed at two places across the above-mentioned opening so as to face rearward. Then, the two screws 815 are provided behind the holder 306A via the screw washers 816 and 817, through the screw insert holes 303B2 formed in the rear wall 303B of the moving body 303 and the screw insert holes 306D2 formed in the fine moving plate 306D. The holder 306A is integrally fixed to the moving body 303 by being screwed into two screw holes of the wall 306A3.

Here, the configuration of the rear part from the rear wall 303B of the right moving body 303, that is, the configuration of the right eyepiece 304 will be described. 27 is a front view showing the right eyepiece viewed from the front, FIG. 28 is a rear view showing the right eyepiece viewed from the rear, FIG. 29 is a cross-sectional view taken along line G1G1 of FIG.
27 is a bottom view of the right eyepiece, and FIG. 31 is a sectional view taken along line G2G2 in FIG. Projections 303B3 extend rearward from an upper edge, a left edge, and a lower edge of a rear wall 303B of the right moving body 303, and a threaded hole 303B31 is formed in the projection 303B3 in its thickness direction. Have been.

As shown in FIGS. 27 to 31,
The right eyepiece 304 includes a bottom wall 304A and a right side wall 304 that is erected from a right edge, a left edge, and a rear edge of the bottom wall 304A.
B, left side wall 304C, rear wall 304D, and right side wall 3
04B, a left side wall 304C, and an upper wall 304E connecting the upper portions of the rear wall 304D. Bottom wall 304A,
The front edge portions of the right wall 304B, the left wall 304C, and the upper wall 304E are configured so that the rear wall 303B of the right moving body 303 is fitted therein, and the bottom wall 304A, the right wall 304B, and the upper wall 3
At the position near the front edge of 04E, screw insertion holes 304 are respectively provided.
F is provided. Then, each of the three screws 818 is inserted into each of the projections 303 of the rear wall 303B through each of the screw insertion holes 304F.
By screwing into the screw hole 303B31 formed in B3, the rear wall 303B of the right moving body 303 is fixed to the right eyepiece tube 304. Therefore, the right eyepiece 304
And the prism unit 306 are integrally fixed to the right moving body 303, and the right eyepiece 304 and the prism unit 30 are fixed.
6. The right moving body 303 includes the right frame 301 and the objective unit 305.
Are provided movably in the optical axis direction along the guide shafts 301A and 301D. A hole 304G is formed in the center of the rear wall 304D of the right eyepiece 304 in a thickness direction of the rear wall 304D, and a female screw 304G1 is formed on an inner peripheral portion of the hole 304G, so that the mounting portion 304D1 is formed.
Is provided. An eyepiece lens frame 309A, which will be described later, is attached to the attachment portion 304D1.

The rear surface of the rear wall 303B of the right moving body 303,
Two guide shafts 311 parallel to each other are provided between the front wall of the rear wall 304D of the right eyepiece 304 and extend in the front-rear direction, that is, along the optical axis direction.

The first lens portion 307 is provided with the first lens frame 30.
7A and a first lens 307B. The first lens frame 307A will be described with reference to the drawings. FIG.
2 is a front view of the first lens frame, FIG. 33 is a rear view of the first lens frame, FIG. 34 is a plan view of the first lens frame, and FIG.
34 is a sectional view taken along line H1H1, and FIG. 36 is a sectional view taken along line H2H2 in FIG. As shown in FIGS. 32 to 36, the first lens frame 307A includes a cylindrical wall-shaped main body 307A1,
A plate-like engaging arm 307A2 (corresponding to a first main body in the claims) extending forward from the lower edge of the main body 307A1, and rearward from the right edge and the left edge of the main body 307A1, respectively. It is composed of extended bearing arm portions 307A3 and 307A4.

The outer periphery of the first lens 307B is held on the inner periphery of the main body 307A1 of the first lens frame 307A. The front end of the lower surface 307A22 (corresponding to the first surface portion in the claims) of the engagement arm portion 307A2 is provided with the above-described first surface.
Engagement convex portion 307A21 that engages with concave groove 213D provided in first arm portion 213B on the right side of lens interlocking plate 213.
(Corresponding to the engaging projection in the claims). The engagement projection 307A21 is configured to be immovable in the front-rear direction while being engaged with the concave groove 213D and movable in the left-right direction (ie, the extending direction of the concave groove 213D). Arm 307A for bearing of main body 307A1
3 is provided with a bearing hole 307A11 through which the guide shaft 311 is inserted. The bearing arm 307A4 is provided with a bearing hole 307A41 through which the guide shaft 311 is inserted. Therefore, the main body 307A1 is connected to each guide shaft 311.
Are held movably in the front-rear direction with respect to the respective guide shafts 311 by bearing holes 307A11 and 307A41 into which are inserted. Further, the engagement protrusion 30 of the engagement arm 307A2 is provided.
In the vicinity of 7A21, a hole 307A23 facing downward (corresponding to an indicator in the claims) is formed. When the engaging projection 307A21 is engaged with the concave groove 213D provided in the first arm 213B on the right side of the first lens interlocking plate 213, the position of the hole 307A23 is changed to the first lens interlocking plate 2
13 is configured to coincide with the position of the outer edge of the first arm portion 213B on the right side of the thirteenth arm.

The second lens section 308 is provided for the second lens frame 30.
8A, second lens press ring 308B, and second lens 308C
It is composed of The second lens frame 308A will be described with reference to the drawings. 37 is a front view of the second lens frame, FIG. 38 is a rear view of the second lens frame, FIG. 39 is a sectional view taken along the line I1I1 of FIG. 37, and FIG. 40 is a second view showing FIG. FIG. 41 is a side view of the lens frame, and FIG.
FIG. 2 is a cross-sectional view of a relevant part showing a state in which is broken along the line I3I3. The second lens frame 308A has a cylindrical wall-shaped main body 308A.
1, an engagement arm 308A2 extending forward from a lower edge of the main body 308A1 (corresponding to a first main body in the claims), and a bearing 3 provided on a right edge of the main body 308A1.
08A3 and a bearing 308A4 provided on the left edge of the main body 308A1. Second lens frame 30
The inner peripheral portion of the main body 308A1 of the 8A is configured to hold the outer peripheral edge of the second lens 308C. The second lens 308C is screwed together.
Is held by the main body 308A1 and the second lens pressing ring 308B.

Lower surface 308A22 of engagement arm 308A2
The first arm 214B on the right side of the second lens interlocking plate 214 described above is provided at the front end of the second arm interlocking plate 214 (corresponding to the first surface in the claims).
Convex portion 30 that engages with concave groove 214D provided in
8A21 (corresponding to the engaging projection in the claims) is provided. The engaging projection 308A21 is configured to be immovable in the front-rear direction and movable in the left-right direction (ie, the extending direction of the concave groove 214D) in a state of being engaged with the concave groove 214D. Bearing part 30 of main body 308A1
8A3 has a bearing hole 308A3 through which the guide shaft 311 is inserted.
1 is provided. Also, bearing holes 308A41, 308A4 through which the guide shaft 311 is inserted are inserted into the bearing portion 308A4.
2 are provided at intervals in front and back. Therefore,
The main body 308A1 is held movably in the front-rear direction with respect to each guide shaft 311 by bearing portions 308A31, 308A41, 308A42 through which each guide shaft 311 is inserted. In addition, the engagement protrusion 308A of the engagement arm 308A2 is provided.
A hole 308A23 facing downward (corresponding to an indicator in the claims) is formed near 21. When the engaging projection 308A21 is engaged with the concave groove 214D provided in the first arm 214B on the right side of the second lens interlocking plate 214, the position of the hole 308A23 is changed to the second lens interlocking plate 214.
Is configured so as to coincide with the position of the outer edge of the first arm portion 214B on the right side of.

The eyepiece 309 includes an eyepiece frame 309A,
It comprises an eyepiece pressing ring 309B, a third lens 309C, and an eyepiece 309D. Eyepiece frame 309A
Is configured to hold an outer peripheral edge of the third lens 309C, and a female screw 309A formed on the inner peripheral portion is formed.
1 is screwed into a male screw 309B1 formed on the outer peripheral portion of the eyepiece pressing ring 309B to thereby form the third lens 309C.
Is held by an eyepiece frame 309A and an eyepiece holding ring 309B. And right eyepiece 3
The male screw 309A2 formed on the outer peripheral portion of the eyepiece frame 309A is screwed into the female screw of the attachment portion 304D1 provided on the rear wall 304D of the eyepiece frame 304.
9A is attached to the mounting portion 304D1.

As shown in FIG.
9D has a rectangular plate shape having a thickness, and a center portion thereof is provided with a hole in the thickness direction and is formed in an annular shape. Aim 30
The rear surface of 9D is attached in a state facing the rear wall 304D of the right eyepiece tube 304.

As shown in FIGS. 27 and 31, on the upper surface of the bottom wall 304A of the right eyepiece 304, the rearward portion of the engaging arm 307A2 of the first lens frame 307A is moved in the front-rear direction. The guide groove 304A1 is formed to extend in the front-rear direction. On the upper surface of the bottom wall 304A of the right eyepiece tube 304, a guide groove 304A2 for guiding a portion of the second arm 308A toward the rear of the engagement arm 308A2 in the front-rear direction is provided on the left side of the guide groove 304A1 in the front-rear direction. Is formed to extend.

Also, the portion of the first lens frame 307A near the front of the engagement arm 307A2 and the second lens frame 308A
The portion from the front of the engaging arm portion 308A2 extends forward from the front edge of the bottom wall 304A of the right eyepiece 304. As described above, the forward portion of the engagement arm 307A2 of the first lens frame 307A is inserted into the guide groove 303A2 provided on the bottom wall 303A of the right moving body 303,
The forward portion of the engagement arm portion 308A2 of the second lens frame 308A is inserted into a guide groove 303A3 provided on the bottom wall 303A of the right moving body 303 and is supported so as to be movable in the front-rear direction.

Therefore, the engaging arm 307A2 of the first lens frame 307A and the engaging arm 308A2 of the second lens frame 308A are held by the right moving body 303 and the right eyepiece 304 so as to be movable in the front-rear direction. . When the first lens frame 307A and the second lens frame 308A move in a direction approaching or separating from each other, the objective lens 305C, the prism unit 306, the first lens 307, the second lens
The magnification of the telescope optical system constituted by the lens 308 and the third lens 309 is reduced or enlarged. That is, in this telescope optical system, the objective lens is constituted by the objective lens 305C,
The eyepiece includes a first lens 307, a second lens 308, and a third lens 309. The magnification of the telescope optical system is reduced or enlarged by moving the first lens 307 and the second lens 308 of the eyepiece in the direction of coming and going in the optical axis direction. The right eyepiece tube 304 constitutes an eyepiece housing for housing the eyepiece.

As shown in FIG. 52, the lower arm 307A22 of the first lens frame 307A is inserted into the guide groove 303A2 provided on the bottom wall 303A of the right moving body 303. Are exposed outside the bottom wall 303A of the right moving body 303. First lens frame 30
7A engagement projection 307A22 and first lens interlocking plate 213
With the engagement concave portion 213D of the first lens frame 3
The position of the hole portion 307A23 of the first lens interlocking plate
The position of the outer peripheral portion of the thirteenth first arm portion 213B matches the position of the outer peripheral portion. If the engagement between the engagement convex portion 307A22 and the engagement concave portion 213D is released, the first lens frame 307A
The position of the hole 307A23 does not coincide with the position of the outer edge of the first arm 213B of the first lens interlocking plate 213. In addition, the engagement protrusion 307A22 and the engagement recess 213D are engaged with each other, so that the lower surface 307A22 of the engagement arm 307A2 of the first lens frame 307A and the upper surface 214B1 of the first arm 213B of the first lens interlocking plate 213. When facing each other, a gap is secured between the lower surface 307A22 and the upper surface 214B1. Further, the engagement protrusion 307A22 of the engagement arm 307A2 of the first lens frame 307A is
7A2 is inserted into the guide groove 303A2 and is movably supported so that the tip of the engaging projection 307A22 projects beyond the lower surface 303A1 of the bottom wall 303A of the right moving body 303. In addition, the above-mentioned engaging projection 307A
22 and the engagement recess 213D are engaged with each other to form the lower surface 307A22.
The upper surface 214B1 and the lower surface 303A1 of the bottom wall 303A of the right moving body 303 are configured to contact each other in a state where the upper surface 214B1 and the upper surface 214B1 face each other.

According to the above configuration, the first lens frame 307A
The position of the hole 307A23 of the first arm interlocking plate 213 matches the position of the outer edge of the first arm 213B of the first lens interlocking plate 213,
Depending on whether they are mismatched, it can be easily visually recognized whether the engaging projection 307A22 and the engaging recess 213D are engaged or disengaged. Therefore, when the engagement is released, the first lens frame 307A or the first lens interlocking plate 213 is moved to engage the projection 307A2.
2 and the engagement recess 213D can be engaged. In this example, when the position of the hole 307A23 of the first lens frame 307A does not match the position of the outer edge of the first arm 313B, the hole 307A23 is connected to the first arm 31.
There are two possible states: a state in which the hole 307A23 is covered with the first arm 313B and is not exposed to the outside while the hole 307A23 is covered with the first arm 313B. Also, the engagement arm 3 of the first lens frame 307A
Since the hole portion 307A23 is formed in the 07A2, when the engagement between the engagement convex portion 307A22 and the engagement concave portion 213D is released,
If the hole 307A23 is not covered with the first arm 213B, the tip of the tweezers (corresponding to a jig in the claims) is engaged with the hole 307A23 to thereby form the first lens frame 307A. The engaging arm 307A2 is easily moved so that the engaging convex portion 307A22 and the engaging concave portion 213
There is an advantage that D can be engaged.

The second lens frame 308A and the second lens interlocking plate 214 are configured in the same manner as described above.
Similar effects are achieved. That is, as shown in FIG. 52, the engagement arm 30 of the second lens frame 308A
8A2 is inserted into a guide groove 303A3 provided in the bottom wall 303A of the right moving body 303, and the lower surface 308 of the guide groove 8A2 is inserted into the guide groove 303A3.
A22 is exposed outside the bottom wall 303A of the right moving body 303. Engagement projection 308A22 of second lens frame 308A
The position of the hole 308A23 of the second lens frame 308A coincides with the position of the outer edge of the second arm portion 214B of the second lens interlocking plate 214 in a state in which the engagement concave portion 214D of the second lens interlocking plate 214 is engaged. It is supposed to. If the engagement projection 308A22 and the engagement recess 214D are disengaged from each other, the position of the hole 308A23 of the second lens frame 308A is adjusted to the position of the outer edge of the second arm 214B of the second lens interlocking plate 214. Will not match. In addition, the engagement protrusion 308A22
The lower surface 308A22 of the engaging arm portion 308A2 of the second lens frame 308A and the upper surface 214B1 of the second arm portion 214B of the second lens interlocking plate 214 face each other with the engaging concave portion 214D engaging with the lower surface 308A22. Upper surface 214B
A gap is secured between the two. In addition, the engagement protrusion 308A of the engagement arm 308A2 of the second lens frame 308A.
Reference numeral 22 denotes an engagement protrusion 308A in a state where the engagement arm 308A2 is inserted into the guide groove 303A3 and is movably supported.
Numeral 22 is configured such that its tip protrudes from the lower surface 303A1 of the bottom wall 303A of the right moving body 303. Further, in a state where the engaging projection 308A22 and the engaging recess 214D are engaged and the lower surface 308A22 and the upper surface 214B1 face each other, the upper surface 214B1 and the bottom wall 303 of the right moving body 303 are arranged.
The lower surface 303A1 of A is configured to abut.

According to the above configuration, the second lens frame 308A
Whether the position of the hole 308A23 of the above-mentioned position matches the position of the outer edge of the second arm 214B of the second lens interlocking plate 214,
It can be easily visually recognized whether or not the engagement convex portion 308A22 and the engagement concave portion 214D are engaged or disengaged, depending on whether or not they match. Therefore, when the engagement is released, the second lens frame 308A or the second lens interlocking plate 214 is moved to move the engagement convex portion 308A2.
2 and the engagement recess 214D can be engaged. In this example, when the position of the hole 308A23 of the second lens frame 308A does not match the position of the outer edge of the second arm 314B, the hole 308A23 is connected to the second arm 31.
Two states can occur: a state in which the hole 308A23 is covered with the second arm part 314B and is not exposed to the outside, while the hole 308A23 is covered with the second arm 314B. Also, the engagement arm 3 of the second lens frame 308A
Since the hole 308A23 is formed in the hole 08A2, when the engagement between the engagement protrusion 308A22 and the engagement recess 214D is released,
If the hole 308A23 is not covered with the second arm 214B, the tip of tweezers (corresponding to a jig in the claims) is engaged with the hole 308A23 to thereby form the second lens frame 308A. The engaging arm 308A2 is easily moved so that the engaging convex portion 308A22 and the engaging concave portion 214 are moved.
There is an advantage that D can be engaged.

Then, the first lens frame 307A and the second
The objective lens 305C, the prism unit 306, the first lens 307, the second lens 308, and the third lens 308C move in a direction approaching or moving away from the lens frame 308A.
The magnification of the telescope optical system constituted by the lens 309 is reduced or enlarged. That is, in this telescope optical system, the objective lens is constituted by the objective lens 305C, and the eyepiece is the first lens.
It comprises a lens 307, a second lens 308, and a third lens 309. The magnification of the telescope optical system is reduced or enlarged by moving the first lens 307 and the second lens 308 of the eyepiece in the direction of coming and going in the optical axis direction.

Next, a description will be given of the left objective frame 405A having a different configuration from the components forming the right mirror 300 among the components forming the left mirror 400. As shown in FIGS. 16 and 17, the left objective frame 405A has a cylindrical wall-shaped main body 405A1, a first holding portion 405A2 provided on the left side of the main body 305A1, and a rearward portion from the right side of the main body 405A1. The second holding portion 305A3 extends. The inner peripheral portion of the main body 405A1 is configured to hold the outer peripheral edge of the objective lens 405C, and a male screw formed on the outer peripheral portion of the objective holding ring 405B is screwed into a female screw formed on the inner peripheral portion. The objective lens 405C is held by the main body 405A1 and the objective holding ring 405B.

The first holding portion 405A2 is provided with a guide shaft 401A.
Is movably held in the axial direction. A bearing hole 405A31 is provided in the second holding portion 405A3 with the axis thereof oriented in the front-rear direction.
The guide shaft 401 </ b> D is inserted through 31. And the second
The holding portion 405A3 is configured to hold the guide shaft 401A movably in the axial direction thereof. For this reason, the object frame 405A is held movably in the front-rear direction along the guide shafts 401A and 401D. Also, the right objective frame 4
05A is a screw 81 screwed to the first holding portion 405A2.
9 is fixed to the guide shaft 301A.

Therefore, in the objective lens 405C held by the left objective frame 405A, the position in the optical axis direction with respect to the left frame 401 can be set to an arbitrary position along the axial direction of the guide shafts 401A and 401D. First holding unit 40
It is configured to be fixed at the set position by a screw 819 screwed into 5A2. That is, the left objective frame 405A is not provided with a configuration corresponding to the engaging portion 305A4 that engages with the diopter difference eccentric seat 107 in the right objective frame 305A. Therefore, the position of the objective lens 405C in the optical axis direction with respect to the left frame 401 is fixed by screwing the screw 819 to the first holding portion 405A2 in the manufacturing process, so that the user cannot adjust it after the product is completed. It has become. On the other hand, the position of the right lens body 300 in the optical axis direction with respect to the right frame 301 of the objective lens 305C adjusts the diopter difference by rotating the diopter makeup ring 106, that is, the diopter difference eccentric seat 107, as described above. It is configured to be able to. That is, the dioptric makeup ring 10
6. The diopter difference eccentric seat 107 and the left objective frame 305A constitute a diopter difference adjusting mechanism.

The left moving body and the left eyepiece are substantially symmetrical to the right moving body and the right eyepiece except for the guide grooves of the first and second lens frames described below. Since they are functionally the same, in the drawings shown below, the lower two-digit numbers and alphabets of the parts corresponding to each other are assigned in common and the description thereof is omitted. 42 is a plan view of the left moving body, FIG. 43 is a front view of the left moving body showing FIG. 42 as viewed from the direction of arrow J1, and FIG.
2 is a side view of the left moving body showing the state viewed from the arrow J2, FIG. 45 is a rear view of the left moving body showing a state of FIG. 42 viewed from the arrow J3, and FIG. 46 is FIG. 43 viewed from the direction of the arrow J4. It is a bottom view of the left moving body which shows a state. 47 is a front view showing the left eyepiece viewed from the front, FIG. 48 is a rear view showing the left eyepiece viewed from the rear, FIG. 49 is a sectional view taken along line K1K1 in FIG. 47, and FIG. FIG. 51 is a sectional view taken along line K2K2 in FIG. 47. In the present embodiment, the first and second lens frames 407 and 408 of the left lens body have the same shape as the first and second lens frames 307 and 308 of the right lens body. Guide grooves 403A2, 403A3 and guide grooves 404A1, 404A2 of left eyepiece tube 404.
Are configured to have the same positional relationship as the guide grooves 303A2 and 303A3 of the right moving body 303 and the guide grooves 304A1 and 304A2 of the right eyepiece 304, respectively.

Next, the binoculars 10 constructed as described above
The operation when 00 is used will be described. First, as shown in FIGS. 1 and 2, the right eyepiece tube 30 with the right body 300 and the left body 400 of the binoculars 1000 closed.
It is assumed that the eyepiece 4 and the left eyepiece tube 404 are housed in the exterior, that is, in a collapsed state. The user supports the right mirror 300 with the right hand and the left mirror 400 with the left hand. At this time, the thumbs of the right and left hands touch the bottom wall lower surface of the right exterior and the left exterior,
The other fingers of the right hand and the left hand hold the upper surfaces of the upper walls of the right exterior and the left exterior, respectively, from below and above.

Here, the focus adjustment ring 202 and the zoom adjustment ring 204 are disposed adjacent to the main shaft 201 provided on the center line of the binoculars 1000 in the left-right direction, that is, on the same axis, so that the right hand When the focus adjustment ring 202 and the zoom adjustment ring 204 are rotated by any of the index finger or the middle finger of the left hand, there is an advantage that the rotation operation can be easily performed by either the right hand or the left hand. When the focus adjustment ring 202 is rotated in a predetermined direction by a finger,
Arm 20 extending in the axial direction integrally with main body 202A
2A1 is rotated, and the hole-shaped engaging portion 20 of the arm 202A1 is rotated.
The spherical body 203 engaged with 2A11 is the first of the moving shaft 206.
The guide groove 20 formed in the shaft portion 206A into a double thread shape.
Move along 6A1. Flange part 2 of moving shaft 206
Convex portions 206C4, 20 provided on the right and left sides of 06C
6C5 is a guide groove 101C11 provided on the right wall 101C and the left wall 101D of the main body 101 so as to extend in the front-rear direction.
It is moved along 101D11. And each convex part 20
6C4, 206C5 are stepped portions 101C12, 101D12.
, The front position of the moving shaft 206 is regulated,
The rear position is regulated by abutment of the respective convex portions 206C4 and 206C5 on the rear wall portion 101G1 of the main body 101.
In addition, the spherical body 203 has the first groove portion 206A11 having a wide pitch.
The moving amount of the moving shaft 206 is larger than the rotating amount of the focus adjustment ring 202 in the range of moving along the
Is moving to the second groove portion 206A12 having a small pitch, the moving shaft 206 is not movable with respect to the rotation amount of the focus adjustment ring 202.
Movement amount becomes small.

A holding plate 215 is integrally attached to the moving shaft 206 to which the cam frame 210 is attached, and a moving body interlocking shaft 216 is integrally attached to the holding plate 215. Therefore, in conjunction with the movement of the moving shaft 206, the right moving body 306
Then, the left moving body 406 is moved backward. As a result, the right eyepiece tube 304 and the left eyepiece tube 404 protrude from behind the binoculars 1000. In this state, look at the eyepieces 309 and 409 with both eyes, and open the right mirror 300 and the left mirror 400 in the horizontal direction so that the right and left visual fields overlap and become one while looking at a distant object. Adjust the interpupillary distance with. As described above, the right exterior 310A and the left exterior 410A are
9 and the left interlocking plate 110. Therefore, the right mirror body 300 and the left mirror body 400 move in conjunction with the approaching direction or the separating direction along the left-right direction, and the same distance in the left-right direction with respect to the center of the binoculars 1000 in the left-right direction. Since it moves, the interpupillary distance can be easily adjusted. By applying a frictional force when the left interlocking plate 110 moves in the left-right direction, the operational feeling at the time of adjusting the interpupillary distance can be improved.

When adjusting the interpupillary distance, the first and second arms 213B and 214B of the first and second lens interlocking plates 213 and 214 are used.
The first lens frames 307A, 407A and the second lens frames 308A, 408A engaged with the concave grooves 213D, 214D of
Are also moved in the left and right directions. At this time, the mirror 30
0, 400, that is, the left and right telescope optical systems move symmetrically in the left-right direction about the center of the support plate 102 in the left-right direction. Therefore, as shown in FIG. 20, the engagement projections 3 of the first lens frames 307A and 407A are moved from the guided portions 213E and 213F of the first arm 213B.
First arm 2 to which 07A21 and 407A21 are connected
The distance to the location of the concave groove 213D of 13B becomes equal on the left and right.

Similarly, as shown in FIG.
The engagement projections 308A2 of the second lens frames 308A, 408A from the positions of the guided parts 214E, 214F of the arm 214B.
The distance to the location of the concave groove 214D of the second arm 214B to which 1,408A21 is connected becomes equal on the left and right. Therefore, when adjusting the magnification described later, the first lens frame 30
7A, 407A and the load applied to the first and second arm portions 213B and 214B from the second lens frames 308A and 408A, that is, from the guided portions 213E and 213F of the first arm portion 213B to the guide portions 101C2 and 101D2 of the main body 101. Load and guided parts 214E, 214 of the second arm part 214B
Since the load applied from F to the guide portions 101C2 and 101D2 of the main body 101 is equal on the left and right sides, the first and second lens connecting plates 213 and 214 can be stably moved in the optical axis direction. The effect can be achieved.

Note that the focus adjustment is performed by rotating the focus adjustment ring 202. That is, the focus adjustment ring 202
Is rotated to move the right moving body 303 fixed integrally.
The right eyepiece 304 and the eyepiece 309 are moved in the optical axis direction with respect to the right objective frame 305A. That is, the first lens 30
Focus adjustment is performed by moving the lens 7B, the second lens 308C, and the third lens 309C toward and away from the objective lens 305C. It goes without saying that the same focus adjustment operation is performed simultaneously in the left mirror 400 as well.

Further, the magnification adjustment is performed by rotating the zoom adjustment ring 204. That is, the zoom adjustment ring 2
04, the main shaft 201 is rotated and the cam ring 2 is rotated.
07 rotates with respect to the cam frame 210. Then, the first lens piece 208 engaged with the first cam groove 207D and the second cam groove 207E of the cam ring 207 via the sphere 210B,
The second lens piece 209 is moved in the opposite direction. As a result, the first lens top 208 and the second lens top 209
The first lens interlocking plate 213 and the second lens interlocking plate 214 attached to the first lens interlocking plate 213 and the second lens interlocking plate 214 engaged with the first lens interlocking plate 213 and the second lens interlocking plate 214, respectively. Are moved in a direction away from and approaching each other in conjunction with the first lens top 208 and the second lens top 209.

As shown in FIG. 52, the first and second
The telescope optical system is adjusted to the widest side by moving the lens interlocking plate farthest away. Conversely, as shown in FIG. 53, when the first and second lens interlocking plates come closest, the telescope optical system is adjusted to the most telephoto side. Accordingly, when the first lens 307B and the second lens 308C are separated and approach each other, the magnification of the telescope optical system including the objective lens 305C, the prism unit 306, the first lens 307B, the second lens 308C, and the third lens 309C. Is reduced or enlarged. Of course, in the left lens body 400, the zoom adjustment operation is simultaneously performed by the same configuration as the right lens body 300.

Next, the operation of diopter difference adjustment will be described. First, the third lens 409 of the left mirror 400 only with the left eye
The focus adjustment ring 202 is rotated except for C to adjust the focus so that a distant target is in focus. Next, the diopter makeup ring 106 is rotated with the right eye looking through the third lens 309C of the right lens body 300 so that the target is clearly seen. That is, the diopter makeup ring 106 is rotated to rotate the diopter difference eccentric seat 107, and the position of the objective lens 305 </ b> C with respect to the right frame 301 in the optical axis direction is adjusted to an arbitrary position. Adjustments can be made. If the users are the same, it is only necessary to adjust the focus once the diopter difference has been adjusted. The diopter makeup ring 106 is attached to the support plate 10.
Since it is located at a position closer to the front side on the center line in the left-right direction, it is possible to easily rotate the left or right hand with, for example, a thumb. Further, since the diopter makeup ring 106 is provided at a position near the front side on the center line of the support plate 102, the diopter makeup ring 106 is sufficiently separated from the position of the thumb in the state where the focus adjustment and the zoom adjustment are being operated. I have. Therefore, it is possible to prevent the diopter adjustment from going out of order due to careless contact of the thumb with the diopter makeup ring 106 or the like.

As described above in detail, according to the present embodiment, the first lens frame holding the first and second lenses constituting the eyepiece of the telescope optical system, and the engagement projections of the second lens frame are formed. Whether the first and second lens interlocking plates are engaged with or disengaged from the engagement concave portions of the first and second lens interlocking plates are determined by determining whether the first and second lens frames have holes as indicator portions provided in the first and second lens frames. It can be easily visually recognized depending on whether the position with the outer edge of the two-lens interlocking plate matches or does not match. For this reason, it can be easily found that the engagement convex portion and the engagement concave portion are disengaged from each other, and the correction can be made so that the engagement is normally performed. Also,
If the engagement is disengaged, the first lens frame and the second lens frame are easily moved by engaging the tip of tweezers or the like with the holes of the first lens frame and the second lens frame. The mating convex portion and the engaging concave portion can be engaged. In the present embodiment, holes 307A are formed in the engagement arms 307A and 308A of the first and second lens frames 307 and 308 as index portions.
Although 23 and 308A3 are provided, a recess may be provided instead of the hole.

In the present embodiment, an example in which the engagement mechanism of the present invention is applied to binoculars has been described. However, the present invention is not limited to the above configuration, and can be applied to optical devices other than binoculars. Needless to say, there is.

[0105]

The moving mechanism of the present invention comprises a first member and a second member.
A first main body portion movably supported by the support member in a predetermined direction, and a first body portion movably supported by the support member, the first member being outside the support member. A first surface portion exposed to the first member, and an engagement protrusion protruding from the first surface portion, wherein the second member is provided with a second body portion provided at a position away from the support member; A second surface portion provided at a portion where the second main body portion faces the first surface portion, and an engagement concave portion provided in a concave shape on the second surface portion and capable of engaging with the engagement convex portion; The first member and the second member are integrally formed by engaging the engagement protrusion and the engagement recess with the first surface of the first member and the second surface of the second member facing each other. In an engagement mechanism of an optical device movably coupled in a predetermined direction, an index portion is provided on a first surface portion of the first main body portion. The position of the index portion coincides with the position of the outer edge of the second main body in a state in which the engagement convex portion and the engagement concave portion are engaged, and the engagement between the engagement convex portion and the engagement concave portion. The position of the index portion does not coincide with the position of the outer edge portion of the main body portion in a state where it is out of alignment.

Therefore, depending on whether or not the position of the index portion coincides with the position of the outer edge of the second main body, whether the engaging convex portion and the engaging concave portion are engaged or disengaged is determined. Can be easily identified, and when the engagement is disengaged, the first member or the second member can be moved to normally engage the engagement protrusion and the engagement recess.

[Brief description of the drawings]

FIG. 1 is an external view showing a state in which a right lens unit and a left lens unit are closed and a right eyepiece and a left eyepiece are accommodated in an embodiment in which the engagement mechanism of the present invention is applied to binoculars; 1 (A) is a plan view, FIG. 1 (B) is a rear view showing FIG. 1 (A) as viewed from the direction of arrow A1, and FIG. 1 (C) is FIG.
It is a side view showing the state seen from two directions.

FIG. 2 is an external view of binoculars showing the same state as FIG.
2 (A) is a bottom view, and FIG. 2 (B) is an arrow A in FIG. 2 (A).
It is a rear view showing the state seen from three directions.

FIG. 3 is an external view showing a state in which a right lens unit and a left lens unit are opened and a right eyepiece tube and a left eyepiece tube are extended most in the embodiment of the engagement mechanism of the present invention, and FIG. ) Is a plan view, FIG. 3B is a front view showing FIG. 3A as viewed from the direction of arrow B1, FIG. 3C is a side view of FIG. 3A as viewed from the direction of arrow B2, FIG. 3D is a side view of FIG. 3A viewed from the direction of arrow B3.

4 is an external view of binoculars showing the same state as in FIG. 3,
4A is a bottom view, and FIG. 4B is an arrow B in FIG.
FIG. 4C is a rear view showing a state viewed from four directions, and FIG.
It is a side view which shows the state which looked at (A) from arrow B5.

FIG. 5 is a partial sectional view showing a state in which a part of the binoculars is broken.

FIG. 6 is a sectional view taken along line XX of FIG. 5;

FIG. 7 is an exploded perspective view showing the entire configuration of the binoculars.

FIG. 8 is an exploded perspective view showing a part of the support portion.

FIG. 9 is an exploded perspective view showing a part of a support part and an optical adjustment part.

FIG. 10 is an exploded perspective view illustrating a configuration of an optical adjustment unit.

FIG. 11 is an exploded perspective view showing a configuration of a part of an optical adjustment unit and an upper plate.

FIG. 12 is an exploded perspective view mainly showing a configuration of a right exterior part of the right lens body.

FIG. 13 is an exploded perspective view mainly showing a configuration of a right moving body, a right objective section, and a prism section of the right mirror body.

FIG. 14 is an exploded perspective view mainly showing a configuration of a first lens unit, a second lens unit, and an eyepiece unit of the right lens body.

FIG. 15 is an exploded perspective view mainly showing a configuration of a left exterior part of the left mirror body.

FIG. 16 is an exploded perspective view mainly showing a configuration of a left movable body, a left objective section, and a prism section of the left mirror body.

FIG. 17 is an exploded perspective view mainly showing a configuration of a first lens unit, a second lens unit, and an eyepiece of the left lens unit.

18A and 18B are diagrams showing a configuration of a main body, wherein FIG. 18A is a plan view of the main body, FIG. 18B is a cross-sectional view showing a state where the main body is cut along a surface along a longitudinal direction, and FIG. (C) is a bottom view of the main body.

FIG. 19 is a cross-sectional view showing a state in which the main body is broken at a plane orthogonal to the longitudinal direction, and FIG.
FIG. 19B is a sectional view taken along line BB of FIG. 18B.

20A and 20B are diagrams illustrating a configuration of a first lens interlocking plate. FIG. 20A is a front view of the first interlocking plate, and FIG.
FIG. 20C is a plan view of the first interlocking plate showing a state where 0 (A) is viewed from the arrow D1, and FIG. 20C is a bottom view and a diagram of the first interlocking plate showing a state where FIG. 20 (D) is FIG.
It is a side view which shows the state which looked at (B) from arrow D3.

21A and 21B are diagrams showing a configuration of a second lens interlocking plate, wherein FIG. 21A is a front view of the second interlocking plate, and FIG.
FIG. 21 (C) is a plan view of the second interlocking plate showing 1 (A) as viewed from arrow E1, and FIG. 21 (C) is a bottom view of the second interlocking plate showing FIG. 21 (A) as viewed from arrow E2. .

FIG. 22 is a plan view of the right moving body.

FIG. 23 is a front view of the right moving body, showing a state in which FIG. 22 is viewed from the direction of arrow F1.

FIG. 24 is a side view of the right moving body, showing a state where FIG. 22 is viewed from an arrow F2.

FIG. 25 is a rear view of the right moving body, showing a state in which FIG. 22 is viewed from an arrow F3.

FIG. 26 is a bottom view of the right moving body, showing a state where FIG. 23 is viewed from the direction of arrow F4.

FIG. 27 is a front view showing a state where the right eyepiece is viewed from the front.

FIG. 28 is a rear view showing a state in which the right eyepiece is viewed from behind.

FIG. 29 is a sectional view taken along line G1G1 of FIG. 27;

FIG. 30 is a bottom view of the right eyepiece.

FIG. 31 is a sectional view taken along line G2G2 in FIG. 27;

FIG. 32 is a front view of the first lens frame.

FIG. 33 is a rear view of the first lens frame.

FIG. 34 is a plan view of a first lens frame.

FIG. 35 is a sectional view taken along line H1H1 of FIG. 32;

36 is a sectional view taken along line H2H2 in FIG. 34.

FIG. 37 is a front view of a second lens frame.

FIG. 38 is a rear view of the second lens frame.

39 is a sectional view taken along line I1I1 of FIG. 37.

40 is a side view of the second lens frame showing FIG. 37 as viewed from the direction of arrow I2.

41 is an essential part cross sectional view showing a state where FIG. 40 is cut along a line I3I3.

FIG. 42 is a plan view of the left moving body.

FIG. 43 is a front view of the left moving body, showing a state where FIG. 42 is viewed from the direction of arrow J1.

FIG. 44 is a side view of the left moving body, showing FIG. 42 as viewed from arrow J2.

FIG. 45 is a rear view of the left moving body, showing a state in which FIG. 42 is viewed from an arrow J3.

FIG. 46 is a bottom view of the left moving body, showing a state where FIG. 43 is viewed from the direction of arrow J4.

FIG. 47 is a front view showing a state where the left eyepiece is viewed from the front.

FIG. 48 is a rear view showing a state where the left eyepiece is viewed from the rear.

FIG. 49 is a sectional view taken along line K1K1 in FIG. 47;

FIG. 50 is a bottom view of the left eyepiece.

FIG. 51 is a sectional view taken along line K2K2 in FIG. 47;

FIG. 52 is a plan view of the optical adjustment unit showing a state in which the first and second lens interlocking plates are farthest apart and the telescope optical system is adjusted to a low magnification side.

FIG. 53 is a plan view of the optical adjustment unit showing a state where the first and second lens interlocking plates are closest to each other and the telescope optical system has been adjusted to a higher magnification side.

[Explanation of symbols]

 303 Right moving body 303A1 Lower surface 303A2, 303A3 Guide groove 408 Left moving body 403A1 Lower surface 403A2, 403A3 Guide groove 307A, 407A First lens frame 307A2 Engagement arm 307A21 Engagement convex 307A22 Lower surface 307A23 Hole 308A, 308A 308A Frame 308A2 Engagement arm 308A21 Engagement projection 308A22 Lower surface 308A23 Hole 213 First lens interlocking plate 213D Engagement concave 213B1 Upper surface 214 Second lens interlocking plate 214D Engagement concave 214B1 Upper surface

Claims (10)

[Claims] A first member, a second member, and a support member, wherein the first member includes a first body portion movably supported in a predetermined direction by the support member, and a support member. A first surface that is exposed to the outside of the support member in a movably supported state, and an engagement protrusion that protrudes from the first surface, wherein the second member is separated from the support member A second body disposed at a location, a second surface provided at a portion where the second body faces the first surface, and an engagement protrusion provided in a concave shape on the second surface. An engagement recess that can be engaged, wherein the engagement projection and the engagement recess engage with the first surface of the first member and the second surface of the second member facing each other. An engagement mechanism of an optical device in which a first member and a second member are integrally coupled to be movable in the predetermined direction; Indicator portion is provided on the first face of the body portion, the position of the indicator portion in a state in which the engagement projection and the engagement recess are engaged matches the position of the outer edge portion of the second body portion, and,
An optical device, wherein the position of the index portion does not coincide with the position of an outer edge portion of the main body portion in a state where the engagement convex portion and the engagement concave portion are disengaged. Engagement mechanism. 2. A gap is secured between the first surface portion and the second surface portion in a state where the engagement convex portion and the engagement concave portion are engaged and the first surface portion and the second surface portion face each other. The engagement mechanism of an optical device according to claim 2, wherein: 3. The support member has a flat portion, and a guide groove extending linearly is formed in the flat portion, and the first main body portion is moved by the support member by being inserted into the guide groove. The engagement mechanism according to claim 2, wherein the engagement projection is supported so that a tip of the engagement projection protrudes from the flat portion. 4. A configuration in which the second surface portion and the flat surface portion are configured to be in contact with each other in a state where the engagement convex portion and the engagement concave portion are engaged and the first surface portion and the second surface portion face each other. An engagement mechanism for an optical device according to claim 3, wherein: 5. The engagement mechanism according to claim 1, wherein the indicator comprises a hole or a recess provided in the first surface. 6. In a state in which the engagement protrusion and the engagement recess are disengaged, the jig is engaged with the hole or the recess to move the first member, thereby causing the engagement protrusion to move. The engagement mechanism of the optical device according to claim 5, wherein the engagement mechanism is configured to be able to engage the engagement recess. 7. The optical device is a pair of binoculars having left and right telescope optical systems, each of the telescope optical systems has an objective lens and an eyepiece,
The objective lens or the eyepiece has first and second lenses provided so as to be independently movable along an optical axis of the telescope optical system, and the predetermined direction is an optical axis direction of each of the telescope optical systems. Wherein the first member and the second member are each provided two by two,
One of the first members is connected to a first lens of the telescope optical system, the other of the first members is connected to the second lens, and one of the second members is connected to one of the first members.
The other of the second members is respectively engaged with the other of the first members, and each of the second members is a zoom adjustment member operated to adjust a magnification of an image formed by the telescope optical system. The engagement of the optical device according to any one of claims 1 to 6, wherein the coupling is connected to each of two moving members that move in opposite directions along the predetermined direction in conjunction with movement. mechanism. 8. The engagement mechanism according to claim 1, wherein the first main body is supported by the support member so as to be linearly movable in a predetermined direction. 9. The engagement recess of the second member includes a recess extending in a direction perpendicular to the predetermined direction.
The member, the support member, and the second member are coupled so as to be relatively movable along the extending direction of the concave groove in a state where the engaging convex portion is engaged with the engaging concave portion. The engagement mechanism for an optical device according to claim 8, wherein: 10. The first main body portion is supported by the support member so as to be linearly movable in a predetermined direction, and the engaging recess of the second member is constituted by a concave groove extending in a direction perpendicular to the predetermined direction. The first member and the support member and the second member
The member is relatively movably coupled along the extending direction of the concave groove in a state in which the engaging convex portion is engaged with the engaging concave portion, and the engaging mechanism includes a left and right telescope optical system. A telescope optical system having an objective lens and an eyepiece lens, wherein the objective lens or the eyepiece lens is provided so as to be independently movable along an optical axis of the telescope optical system. , A second lens, the predetermined direction is an optical axis direction of the telescope optical system, and the first member and the second
Two members are provided respectively, one of the first members is connected to the first lens of each telescope optical system, the other of the first members is connected to the second lens, and one of the second members is connected to the second lens. One of the first members is engaged with the other of the second members respectively with the other of the first members.
Each of the two moving members moves in opposite directions along the predetermined direction in conjunction with the movement of a zoom adjustment member operated to adjust the magnification of an image formed by the telescope optical system. And each of the telescope optical systems is configured such that an interpupillary distance, which is an interval in a direction orthogonal to an optical axis, is adjustable, and the first member, the support member, and the second member are adjusted when the interpupillary distance is adjusted. 7. The engaging mechanism of the optical device according to claim 1, wherein a relative movement is made along an extending direction of the concave groove.